Friction-drum winding mechanism.



E. O'BRIEN, FRICTION DRUM WINDING MECHANISM.

APPLICATION FILED FEB. f5, l9I6-- t Patented Nov. 20, 1917.

a L o Q M Q a VII-1:1! U n m I C m N M .7: 4 w l l I I lllllnll v e 12 n z Q a E. OBRIEN. FRICTION DRUM WINDING MECHANISM.

- APPLICATION FILED FEB- I6, 1916. 1,%6,988. Patented Nov. 20, 1917..

3 SHEETS-SHEET 2- E. OBRIEN. FRICTION DRUM WINDING MECHANISM.

3 SHEETSSHEET 3 Patented Nov. 20, 1917.

APPLICATION FILED FEB. 16. I916.

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EUGENE OBRIEN, EAU CLAIRE, WISCONSIN.

FRICTION-DRUM WINDING IliECI-IANISM.

To all whom it may concern: 7

Be it known that I, EUGENE OBRIEN, a citizenof the United States, residing at Eau Claire, in the county of Eau Claire, State of WVisconsin, have made a certain new and useful Invention in Friction-Drum Ninding Mechanism, of which the following is a specification.

The invention relates to automatic belt shifting devices. I

The object of the invention is to provide automatic belt shifting devices which are simple in construction and efficient in operation. I

A further object of the invention is to provide devices of the class described, which may be especially adapted for use in connection with double drum winders of paper making machines.

Further objects of the invention will appear more fully hereinafter.

The invention consists substantially in the construction, combination, location and relative arrangement of parts, all as will be more fully hereinafter set'forth, as shown in the accompanying drawings, and finally pointed out in the appended claims.

Referring to the drawings,

Figure 1 is a view in front elevation of one form of apparatus embodying my invention.

Fig. 2 is a top plan view of the same.

Fig. 3 is a broken view in front elevation of a modified construction embodying my invention.

7 Fig. 4 is a view in section taken on the line 4, 4, Fig. 3, and looking in the direction of the arrows;

Fig. 5 is a top plan view of Fig. 4.

Fig. 6 is a rear view of the structure shown in Fig. 4.

Fig. 7 is a view in front elevation of a modified form of apparatus embodying my invention.

Fig. 8 is a view in side elevation of the same.

Fig. 9 is a top plan view of the same, parts broken off to show the construction and demonstrate the principles of my invention.

Specification of Letters Patent.

Patented Nov. 20, 1917.

Application filed February 16, 1916. SeriaINo. 78 ,604.

universally wound upon rolls of desired length. the majority of cases, what are termed in the art delivering rolls. The endless strip of paper is passed over a series of power driven direction changing or spreading rolls, and is finally delivered to the roll upon which it is wound on by a pair of feed delivering rolls, both of which are power driven, usually by a belt. The roll upon which the paper strip is wound is usually located directly between the delivery rolls, to rest thereon and to be rotated thereby, and adapted to be forced upward by the thickness of the paper as the paper winds there about.

For this purpose are employed in A serious objection that has been recogwhen the roll of material reaches a diameter of about 12 or 14 inches the tension on the paper due to the steady increase of the diameter of the roll of material upon the winding roll, becomes correspondingly greater.

It is among the special purposes of my present invention to obviate this and other difficulties encountered in the art due to similar reasons, and in accordance with my invention I propose to automatically increase the speed of rotation of the power driven drums in accordance with the increase of the diameter of the roll of material upon the winding roll, and to control the change in speed at all times by the speed of increase inthe diameter of that roll of material.

In Figs. 1 and 2, I show a simple arrange ment for accomplishment of the objects of my invention wherein I provide a suitable frame 1, in which are journaled the usual shafts 2, and 3, carrying drums 4 and 5,

respectively. A vertical extension 6 of: one end of the frame 1, is provided with a groove in which slides a member 7 which.

carries a journal 8, which supports shaft 9, of the receiving mandrel 10. Mounted on the shaft 2, of the drum his a cone pulley 11, over which operates a belt 12, which imparts thereto the driving power of the drum 4. The belt 12 passes through a guide or carrier 13 which is adapted to slide horizontally upon slide rods 1-1 which rods are suitably carried by vertical standards 15, as shown.

Attached to the slidable guide or carrier 13, to move the same, is a lever 16, which lever is pivotally connected at 17 to a short vertical lever 18, near its lower end. The lever 13 is secured to a horizontal shaft 19, for instance by means of set screw 20. The shaft 19 is journaled in suitable bearings 21, and has secured to it at its other extremity a long vertically inclined lever 22 to which is secured an adjustable lever 23, at one end, the other end being secured to one end of a bell crank lever 24- which ispivotally connected at 25, to a horizontal extension 26 of the vertical frame 6. Thus it will be seen that when the bell crank lever 24 is moved upwardly the lever 23 is pulled horizontally thereby rocking the lever 22, shaft 19, the short spur or stub lever 18, pulling the rod 16 and consequently pulling the belt carrier or guide 13 and the belt 12 toward the narrow end of the cone pulley 11. It will be seen that by increasing or decreasing the length of the connecting lever 23, and by lengthening or shortening its leverage on the lever 22 by means of the pin connections 30 the speed of travel of the belt carrier or guide may be suitably controlled.

It is desirable to offer resistance to the pull on the belt carrier to prevent unncessary displacement of the same. Forthis purpose I provide a balance weight 31 secured to the downwardly extending arm 32 of the bell crank lever 24, as shown, which weight normally tends to keep the belt 12 at the larger end of the cone pulley through the apparatus hereinbefore described, as will be readily understood. The normal position of the belt 12 may be controlled by thevposition of the set screw 33, which is carried by the horizontal extension 26 to bear against the arm of the bell crank lever 24:, as shown.

Secured to and carried by the member 7, which slides in the groove of the vertical extension 6 of the frame, is a T-shaped arm 34,.pro itled with a lug 35, at the lower end of the head portion of the T, which lug, upon the upward movement of the sliding member 7, is adapted to engage the arm 32 of the bell crank lever 24:, and rock the same.

The shaft 3 of the drum 5 may be rotated from any desirable source, preferably from then wound around the receiving mandrel 10. As the roll of material upon the mandrel 10 becomes larger in diameter the mandrel rises vertically carrying with it the member 7, which in turn carries the T- shaped arm 34, upward until the lug 35 comes in contact with the arms 32 of the bell crank lever 25, thereby rocking the same, pulling the levers 23, 18, thereby rocking the shaft 19, and the lever 18, pulling the arm 16, the belt guide 13 and consequently the belt 12 toward the narrow end of the pulley l1, and in consequence increas ing the speed of rotation of the drum 4, to relieve the tension of the paper winding around the mandrel 10, and preventing the same from winding too tight.

In Figs. 4:, 5, and 6, I show a modified arrangement wherein the cone pulley 1.1 is mounted on the shaft 2, of drum 4, and the vertical sliding member 7 has secured to the face thereof an arm 12 which, upon the upward movement of the mandrel 10 and consequently the sliding member 7, is adapted to come in contact with and rock an arm43. This arm is adjustably and pivotally secured to the frame 1 by means of the slotted bracket 4:4 as shown. Suitably secured to the arm 13, to be pulled upon the upward movement thereof, is a rope chain or belt 45 which passes over suit-able direction pulleys 16 carried in suitable brackets attached to the frame 1, and is secured to the belt guide or carrier 13 to pull the same, and consequently the belt 12 toward the narrow end of the cone pulley 11, upon theupward movement of the arm 413. In this arrangement'to offer resistance to the travel of the belt over the cone pulley, and to insure the normal position of the belt being over the larger end of the pulley, I secureto the other end of the guide or carrier 13 a rope or belt 17, which operates over suitable pulleys 4:9 and has secured to it a suitable weight 50.

The operation of this modified construction is exceedingly simple. The feed as hereinbefore described is to the mandrel 10 which is carried by the sliding member 7. As the diameter of the roll of material upon the mandrel increases, the member 7 rises, comes in contact wit-h and rocks the arm 43, hereby pulling the belt guide or carrier 13, and consequently the belt 12 toward the narrow end of the pulley 11, thereby increasing the speed of rotation of the drums tand 5 in the manner and for the purpose herehibefore described.

In this arrangement the normal position of the arm 43, is controlled by a suitable adjustable stop 49 secured tothe frame 1, as shown.

If desired, the mandrel 10 may be automatically lifted by means of chains 18, which are secured to the sliding member 7, by suitable sprocket wheels actuated through suitable gears from the common source of power, not shown, but as will be readily understood.

In Figs. 7, 8, 9'and'l0, I show another modified construction embodying the principles of my invention wherein upon the upward movement of the slidable member 7, it carries with it a wedge shaped vertical arm 50, which comes in contact with and pushes horizontally a lever 51, which is secured to a shaft 52, suitablv journaled in brackets 53, secured to the frame 1, against the normal tension of a spring 54. The rocking of the cone 51 rocks shaft 52, and the arm 55, which in turn pushes arm 56, to which it is pivotally secured, pushing the belt 12 toward the narrow end of the cone pulley 11 as clearly shown.

It is desirable not to shift the belt until the roll of material upon the mandrel has reached a diameter of about 8 or 9 inches. Therefore any desired means may be employed to prevent the rocking of the arm 51, until the mandrel has reached any particular diameter. I show one simple arrangement wherein a set screw 60 may be screwed through the arm 51, as shown, to bear against the frame of the machine to adjustably limit the normal position of the arm 51, relative thereto.

While I have shown and described my invention as applied specifically to a paper making machine, it is equally well adapted for use on any belt driven machine where the product in any stage of its manufacture is collected on mandrels.

Having now set forth and described the objects and nature of my invention, and having shown several structures embodying the principles thereof, what I claim as new and useful and of my own invention, and desire to secure by Letters Patent of the United States, is,-

1. In an automatic belt shifting device the combination with a delivering roll and a receiving mandrel, means for rotating said delivering roll, said mandrel being driven by said delivering roll, of means for controlling the speed of rotation of said delivering roll in accordance with the diameter of the roll of material wound upon said receiving mandrel.

2. In an automatic belt shifting device, the combination with a delivering roll and a receiving mandrel, means for rotating said delivering roll, said mandrel being driven by said delivering roll, of means for increasing the speed of rotation of said delivering roll proportionately to the increase of diameter of the roll of material wound upon said receiving mandrel.

3. In a device of the class described, the combination with a receiving mandrel and a delivering roll, of means including a cone shaped pulley for rotating said delivering roll, said mandrel being driven by said delivering roll, means for operating said pulley, and means controlled by thediameter of the roll of material wound upon said receiving mandrel for shifting said pulley operating means.

4. In a device of the class described, the combination with a receiving mandrel and a delivering roll, of means including a cone shaped pulley for rotating said delivering roll, said mandrel being driven by said delivering roll, means for operating said pulley, means for normally maintaining said pulley operating means toward the end of larger diameter of said pulley, and means controlled by the increase of diameter of the roll of material wound upon said receiving mandrel for shifting said pulley operating means toward the end of smaller diameter of said pulley.

5. In an automatic belt shifting device, the combination with a delivering roll and a receiving mandrel, of means including a cone shaped pulley, for rotating said delivering roll, said mandrel being driven by said delivering roll, a belt for operating said pulley and means controlled by the diameter of the roll of material on said receiving mandrel for shifting said belt.

6. In an automatic belt shifting device, the combination with a delivering roll and a receiving mandrel of means including a cone shaped pulley for rotating said delivering roll, said mandrel being driven by said delivering roll a belt for operating said pulley, means for normally maintaining said belt at the end of larger diameter of said pulley, and means controlled by the increase vof diameter of the roll of material wound EUGENE OBRIEN. Witness:

MARGARET C. WANG.

Copies of this patent may be obtained for five cents each, by addressing. the Commissioner of lPatents,

Washington, D. 0. a i 

